// Modified from: https://github.com/ClickHouse/ClickHouse/blob/30fcaeb2a3fff1bf894aae9c776bed7fd83f783f/dbms/src/Common/SimpleIncrement.h
//
// Copyright 2023 PingCAP, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

#pragma once

#include <common/types.h>

#include <atomic>


/** Is used for numbering of files.
  */
struct SimpleIncrement
{
    std::atomic<UInt64> value;

    explicit SimpleIncrement(UInt64 start = 0)
        : value(start)
    {}

    void set(UInt64 new_value) { value = new_value; }

    UInt64 get() { return ++value; }
};
